Women care more about what others call themselves, calling their aunts old and their sisters tired. Sometimes it is more appropriate and kind to call them sister.
At the same time, I am not tired of calling my sister to praise each other. The phrase "My sister is great" is now used in rice circles to express fans' love for a certain star, and fans often make such a statement in the video of loving beans and dancing.
Most fans are relatively young, so calling their favorite female idols sisters can narrow the distance, depending on personal preferences and actual age. After all, a mature girl can always attract others.
Reasons for the popularity of the word "sister";
Mango Taiwan released a file "Braving the Wind and Waves", which is a group of mature actresses, shining on the stage and working hard.
The audience saw that sisters in their thirties still have high demands on their bodies, and they are positive, cheerful and hard-working, so after the program was broadcast, the word "sisters" became synonymous with many women in their thirties.